The present invention discloses a Textilene mesh fabric and its application, which comprises warp yarns and weft yarns interwoven; the warp yarns comprise the first warp yarns and the second warp yarns, and the weft yarns comprise the first weft yarns and the second weft yarns; the first warp yarns and the first weft yarns are PVC threads, and the second warp yarns and the second weft yarns are polyester synthetic fibers. The present invention uses the polyester synthetic fiber to replace the traditional polyester yarn, and mixes with PVC thread prepared by the thread production mechanism to weave the Textilene mesh fabric that has an elongation ratio of more than 30% under high-temperature softening.

A method for manufacturing an electret melt blown nonwoven fabric, wherein, when a non-electroconductive polymer is melt-spun from a spinneret having a plurality of spinning holes in the width direction and a spun yarn is collected by a yarn collection device provided below to form a melt blown nonwoven fabric, water is sprayed by a spray nozzle to the spun yarn between the spinneret and the yarn collection device to electretize the melt blown nonwoven fabric, the spray nozzle includes a plurality of water discharge openings arranged in the width direction and a pair of air discharge openings that are opened continuously or intermittently in the width direction and arranged to face each other, and air discharged from the air discharge openings is made to collide with water discharged from the plurality of water discharge openings to spray the water on the spun yarn.

A method of manufacturing an artificial turf fiber includes extruding a polymer mixture through at least one fiber profile opening of an extrusion plate to form an artificial turf fiber, where the fiber profile opening includes first and second end portion openings and a curved middle portion opening has at least one spine opening proximate to at least one end portion opening, allowing the extruded polymer mixture to travel along a distance between the fiber profile opening to a quenching unit, where the at least one spine opening is sized and positioned such that a net polymer mass flow in the extruded polymer mixture from a position of the spine opening to the at least one end portion of the fiber proximate the spine opening occurs before the fiber is quenched, and quenching the extruded polymer mixture in the quenching unit to form the artificial turf fiber.

The present disclosure relates to a method for manufacturing an elastic yarn by melt spinning by means of a spinning machine including an extruder and a spin pack comprising at least one die, the method comprising at least the following steps: a preliminary cold drawing of the yarn at the outlet of the die, followed by a hot drawing of the yarn then by a cold drawing of the yarn. The present disclosure also relates to a textile comprising such an elastic yarn and to a plant configured to implement this method.

A degassing method of removing a dissolved gas from a liquid and a gas exchange method of exchanging a dissolved gas in a liquid and a gas component in a gas phase include a method using a separation membrane. To provide a separation membrane having solvent resistance while maintaining high gas permeability using poly(4-methyl-1-pentene) excellent in solvent resistance and gas permeability. To achieve the object, there is provided a separation membrane containing poly(4-methyl-1-pentene) as a main component and including a surface layer and an inner layer, at least one surface layer having lamellar crystals, wherein micropores are provided on the surface layer having the lamellar crystals, an opening ratio is 0.1% to 10% when a ratio of the micropores to a membrane surface is taken as the opening ratio and the membrane surface is 100%, and an average pore size of the micropores is 3 nm to 30 nm.

The present disclosure pertains to: polyamide fibers for an airbag which are characterized in that the fiber size thereof is 200-800 dtex, inclusive, and the stress retention rate thereof when obtained using a prescribed procedure is at least 3.0%; and a method for producing said polyamide fibers for an airbag, the method being characterized in that during the thermosetting step and the relaxing step thereof, the contact time between thread and a roller which is at least 190 C. is at least 30 msec and less than 110 msec, the temperature of the thermosetting roller is 190-205 C., inclusive, the temperature of the relaxing roller is greater than 100 C. and less than 190 C., and the speed ratio of the relaxing roller to the thermosetting roller satisfies this equation: 1.00<relaxing roller speed/thermosetting roller speed<1.10.